Yes, you can change the email address associated with your Upwork anytime .
Read moreHow do I change my Upwork Gmail account?
When you log-in to your oDesk account, click on “gear” icon (aka settings) at the top right of your screen. Click on Contact Info and then Edit under Account , there you may be able to change your email id. Best, Manish.
Read moreHow do I change my Upwork account?
To change your account type
Read moreHow do I change my address on Upwork?
To add/edit your company contact details
Read more